Patents by Inventor John Steven Mitby

John Steven Mitby has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7215144
    Abstract: An apparatus and method is disclosed for transmitting signals over a signal conductor using a precompensated driver that does not use a current source, and which drives the signal conductor with an impedance similar to the characteristic impedance of the signal conductor. Since no current source is used, the precompensated driver can operate at very low supply voltage.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: May 8, 2007
    Assignee: International Business Machines Corporation
    Inventors: John Steven Mitby, David W. Siljenberg
  • Patent number: 6937060
    Abstract: A method and apparatus are provided for implementing power control in multi-voltage input/output (I/O) circuits. First current biasing devices are provided for creating a first constant bias current. Second current biasing devices are provided for creating a second bias current. The second current biasing devices are activated at a first voltage and are deactivated at a second voltage. The first voltage is less than the second voltage.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: August 30, 2005
    Assignee: International Business Machines Corporation
    Inventors: Daniel Bravo Lacap, John Steven Mitby, David W. Siljenberg, Daniel Guy Young